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Träfflista för sökning "WFRF:(Crawford G.) srt2:(1996-1999)"

Sökning: WFRF:(Crawford G.) > (1996-1999)

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1.
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2.
  • Sims, D. A., et al. (författare)
  • (γ,n) study of the isovector quadrupole resonance in 40Ca
  • 1997
  • Ingår i: Physical Review C: covering nuclear physics. - 2469-9985. ; 55:3, s. 1288-1294
  • Tidskriftsartikel (refereegranskat)abstract
    • The forward-to-backward asymmetry of neutrons emitted in the 40Ca(γ,n0) reaction was measured at photon energies in the range of 27–50 MeV. An energy-dependent asymmetry was observed that is interpreted as evidence of interference between the isovector quadrupole resonance and the giant dipole resonance. Data analysis in terms of semiclassical and direct-semidirect models estimate the isovector quadrupole resonance to be at an excitation energy of 31.0±1.5 MeV, with a width of 16.0±1.5 MeV, and exhausting most of the energy-weighted sum rule for the isovector quadrupole resonance.
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3.
  • Fissum, Kevin, et al. (författare)
  • High-resolution measurement of the 12C(γ,p)11B reaction to excited states for Eγ=50–70MeV
  • 1998
  • Ingår i: Physical Review C: covering nuclear physics. - 2469-9985. ; 58:4, s. 2167-2173
  • Tidskriftsartikel (refereegranskat)abstract
    • Relative population of states in 11B following the 12C(γ,p) reaction has been measured with high resolution using the deexcitation γ-ray technique. The states near 7 MeV in 11B are clearly resolved and the measured population clarifies earlier conflicting data. Comparison of the results with new calculations indicates the importance of both one-nucleon and multinucleon processes.
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4.
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5.
  • Sims, D. A., et al. (författare)
  • The He(γ,n) reaction: a potential testing ground for the alpha-particle wavefunction
  • 1998
  • Ingår i: Physics Letters B. - 0370-2693. ; 442:1-4, s. 43-47
  • Tidskriftsartikel (refereegranskat)abstract
    • Differential cross sections (σ(Eγ,θn)) for the He(γ,n) reaction have been measured at Eγ=50–71 MeV and θn=30–120°. These data are compared with theoretical predictions where a microscopic calculation of the He and He wavefunctions has been made within the Alt-Grassberger-Sandhas, integral-equation formalism.
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